Cement composition.



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WALTELEE Kl 0T1 OSGAVIILL, NEW 'flZ'QRK, ASSIGNGR TO HYDEQLOEE 1 39933553 CORPORATION, A CORPORATION OF llEZV YOKF-ni.

CEMENT COMPOSITION.

Patented Flier. 141, i936.

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170 Brewing. Application filed Hovember 25, 1913. Serial Ii'o. 863,94

To all whom it may concern:

Be it known that l, WALTER FREEMAN, a citizen of the United States, residing at Oscawaua, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Plastic Compositions; and l do hereby declare the following to he a i'ull clear, and exact description of the invention, such as will enahleothcr skilled in the art to make and use the same.

My invention relates to cement com pounds, and it is the object of my invention to produce a cement compound useful for flooring end the like, and for melting posts crossties and other articles which are to he exposed to the action of earthy ingredients.

My new cement composition contains a, substantial part of Wood derivatives. recovered from the sulfite waste of wood pulp inills and I have found. in practice that such a cement compound has peculiarly val liable properties for flooring. It has sufiicient elasticity to make it pleasant to tread on, and it is fireproof, and compared with ordinary plaster cement? it is more n1oisture-proof, lighter in Weight, by far tougher and yet has the proper degree of hardness to Withstand considerable Wear.

In my co-pendiug application, Serial Numher 803,0l3, filed on even date herewith, I have described a method of recovering from the sulfite Waste liquor of Wood pulp mills, the Wood derivatives and also the suli urous acid and calcium constituents in the form oi substantially neutral inert sub stances, and I have used the Word ":;yl1uu1" to designate broadly the inert recovered product Whether in a syrupy or anhydrous state. It was pointed out in that application that if the Wood derivatives were to be re covered and separated from the sulfurous acid and calcium constituents of the liquor, the liquor Wiisi first treated With sodium chlorid and then treated with a suitable-pro oi tent such es barium cliio'rid to ei'lect precipitation of the sulfur and calcium com.-

pounds 035 tlie liquor, after which the syrupy mass con lining the Wood derivatives of the liquor es drawn off from the precipitate and thciisfhleached if desired, end evaporated "so in a down to a solid mass and ground into powder. 1 termed this recovered substance contsining the Wood derivatives separa ed from the precipitates, whether in the syrupy or powdered state, xylozo. it was also pointed out that if the Wood d rivatives end neutralized sulfurous acid and calcium ingredients were to remain uuseparated in the neutralized mixtur th e could he treated so as to eii'ecv' fur calc um compo-wide,

or it could be treste as to si holy cou've. such com mlmds into inert, sui es suspended through the mass, as may in dj and l termed this resulting 1" Ill the sy'ruuy or :ifil'l in tin ecifice. terms xylium ""igvlosou e'o ylozo' in the stated, to designate the neutralized products recovered from the sulfite wastedered magnesium mid to thoroughly coat all of the minute particles of the Wood, after which the mixture is ellewed to dry outto harden the mess. The hardened mess is then broken up, placed in a mill, and ground up with e suitable amount of dry xyliumzlci the dry residue lefuwhen sulfite liquor, after treatment as above indicateohis evaporated-to dryness-a dry metal uid suri' chlorid', preferably megfiesium oxid sud 'cliloridf and a suitable amount of clrymatter such as crushed marble, clean send or the like, to form a dry disined or powdered cement mixture. If

, 6J4 desired, the disintegrated or ground Wood may be mixed with powdered oxy-chlorid and Wetted to harden it and then ground up Wihliiillfi xylium and arid and chlorid Motion of the sul.

-' aflect to any extent the resulting compound.

The cement compound may then be shipped in. suitable containers without the addition.

of the inert matter, which may be mixed in at the time the powdered composition is wetted for use. After the composition is mixed with the inert matter, and wetted with water or a solution of chlorid of asuitable metal, and worked to about the consistency of plaster, it may be laid with a trowel and allowed toset, the treatment being simiar to that given commercial cement. After the cement compound has hardened, it may be drilled with tools without danger of cracking, and it is, therefore, obviously useful as a flooring for power plarts, machine shops or factories where machin s or other structures are to be erected and moved around from time to time;

1 have found 111 practice that the proportions of the ingredients may be widely varied, depending upon (I the resulting flooring or article is intended 1 but l'will give below, by way of example; the proportions of the dilferent ingredients whichl' have found in practice make a highly satisfactory floor covering for oflice buildings'and public places: approximately parts by weight of xylosca or xylozo, approximately 30 parts byweight of dry magnesium oxid, and approximately "15 parts by weight of dry magnesium chlorid, approximately 20 parts by weight of dry disintegrated wood which is to be hardened and disintegrated, and inertniatter of from to 250 parts by weight.

After-this isclosure of my invention, it will be obvious to those skilled in the art that the proportion of the diii'erent ingredients may be widely varied without departing from my invention, the difl'ercut proportions depending entirely upon the de greeof toughness, elasticity or hardness de sired; any suitable oxy-chloridsuch as that of zinc, aluminum or barium, may be used in. the placeof or, if desired, compound oXy-chlorids in some instances maybe used, and I do-not wish tobe limited to any particular proportion ofthe ingredients. It will also be ob vious, after this disclosure ofmy invention, that in so far as the resulting composition flooring or article is concerned, it is not essential to my broad invention that the wood or vegetable matter be first thoroughly dried, since the disintegrated wood maybe used. with normal per cent. of moisture, provided a more concentrated solution of the use for which nor in which the nents of an oXy-chlorid cement the magnesium oXy-chlorid,

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the chlorid be used to compensate for the thoroughly hardened, the moisture in the Wood will evolve gases which greatly depreciate the quality of the resulting article, causing stains in the article and deterioration thereof. The presence of unhardened' vegetable matter in the compound also renders it less moisture-proof and fire-proof and more readily affected by earthy ingredients, and by atmospheric conditions.

Having thus described my invention, what -claim as new and desire to secure by Letters Patent, is:

'1. A. dry powder for use in making cement compositibns, containing cellulose liquor in which the sulfite compounds have been precipitated, said liquor and compounds havin been dried and comminuted, with disintei'ated wood, and the components of an oXy-chlorid cement.

2. A dry powder for use in makingcementcoinpositions, containing cellulose liqsulfite compounds have been precipitated, said liquor and compounds having loecn dried and comminuted, with disintegrated wood, and the compoand a suit-' able quantity of mineral filler.

3; A dry cement composition consisting substantially of pulverized residue of sullite liquor in which the sulfites have been precipitated and. the whole dried and pulverized, nnel disintegrated wood which has. been previously treated with an oxy-chlorid cement, and with the components in powdered form of a suitable oXy-chlorid cement. l. A dry cement composition consisting substantially of pulverized residue of sulfite liquor inwhich the suhits have been precipitated and the whole dried and pulverized, finely disintegrated wood which has been previouslytreated with an oxy-chlorid' cement, and with the components in powdered form of a suitable oXy-chlorid cement, and finely divided mineral filler.

5. i. new composition of matter consisting of sulfite cellulose liquor from which the sulfites ha ve-been precipitated, and thewhole, including the liquor and the precipitates, dried, hardened, pulverized, with the components of an oxy-chlorid cement, and: disintegrated wood which has been mixed with the components of an oxy-chlorid cement, allowed to set and then disintegrated.

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6. A new composition ofmatter consisttates, dried, halgdenec'i, pulverizel, with the ture, in the presence of two subscribing wit- 'components of an oxy-chlond cement, and messes.

disintegrated wood which has been mixed I WALTER'K. FREEMAN. with the components of an oxy-chlorid ce- 5 'ment andinert nfineralfiller, allowed to set Witnesses:

and then disintegrated. JNO. S. GEORGE,

In testimony whereof I affix my signa- GLARENQE W. Honen. 

